======================== unified (from filesystem) ========================
                                         'bitrate'  '228.562'
                                        'duration'  '217'
                                          'artist'  'Satyricon'
                                     'text_people'  ''
                                         'release'  'The Age of Nero'
                                           'title'  'Last man standing (guitar wall'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['melodic black metal', 'norwegian', 'black metal', 'metal', 'norwegian "
 "black metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '207'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '112.134'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Age of Nero'
'TBPM' (BPM (beats per minute))                     '112.134'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Last man standing (guitar wall'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Satyricon'
'TRCK' (Track number/Position in set)               '207'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['melodic black metal',
 'norwegian',
 'black metal',
 'metal',
 'norwegian black metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.19 dB'
'TXXX:replaygain_track_peak'                        '0.504452'

========================== row from database ==========================
                                              'id'  1390874
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Satyricon - The Age of Nero/207-last_man_standing_(guitar_wall_mix).mp3
                                         'working'  None
                                         'bitrate'  228
                                    'duration_sec'  217
                                           'genre'  eid-metal-black
                                        'filesize'  6233493
                                           'mtime'  1620301785
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 207 last_man_standing_(guitar_wall_mix) eid metal black
                                      'tag_artist'  Satyricon
                                     'tag_release'  The Age of Nero
                                       'tag_title'  Last man standing (guitar wall
                                             'bpm'  112.134
                                    'search_title'  'guitar':4,5 'last':1 'man':2 'standing':3 'wall':6
                                   'search_artist'  'satyricon':1
                                  'search_release'  'age':2 'nero':4 'of':3 'the':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '207':3 'black':18 'eid':16 'guitar':7,13 'last':4,10 'man':5,11 'metal':17 'mix':9,15 'standing':6,12 'wall':8,14
                                    'search_combo'  '00dwimp':12 '00metal':13 '207':14 'age':9C 'black':29 'eid':27 'guitar':4A,5A,18,24 'last':1A,15,21 'man':2A,16,22 'metal':28 'mix':20,26 'nero':11C 'of':10C 'satyricon':7B 'standing':3A,17,23 'the':8C 'wall':6A,19,25
                                    'tag_tracknum'  207
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['melodic black metal', 'norwegian', 'black metal', 'metal', 'norwegian black metal']
                                        'tag_date'  2008
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301784.795666  (2021-05-06 13:49:44)
                             'size'  6233493